Image: Tech Future Blue Business Modern Public Account Cover Image.jpg Let an experienced engineer guide you through the Siemens S7-400 rolling mill control system upgrade 🛠️ “Hey, Lao Wang, I heard your factory recently upgraded to S7-400 for rolling mill control? How’s it working?” “Don’t mention it, Lao Li, the equipment is in place, but … Read more
These communication standards play different roles in industrial automation. Let me use a traffic system analogy to help you understand: Basic Positioning of the Four Standards 1. RS-232: A One-to-One Small Road Features: The earliest serial communication standard (1969) Point-to-point full-duplex communication (simultaneous two-way) Single-ended signal transmission (susceptible to interference) Typical transmission distance ≤ 15 … Read more
Modbus–The Common Language of Industrial Communication Why Do We Need Modbus? —— How the Common Language of Industrial Communication Ends the “Babel Tower Dilemma” 1. The Era Before Modbus: The “Babel Tower Dilemma” of Industrial Communication In the factory workshops of the 1970s, the dialogue between equipment was like a chaotic “Babel Tower”: Device A … Read more
Click on the above “ Technical Training ”, select “Pin to Top” 130,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. Introduction In recent years, computer control has been rapidly promoted and popularized. Industrial control computers, PLCs, frequency converters, touch screens, robots, and flexible manufacturing systems are widely … Read more
01 Terminology Interpretation 1 word = 2 bytes; 1 byte = 8 bits. Checksum: A checksum is derived from the preceding data through a certain algorithm to verify the correctness of the data set. When inputting codes as data into a computer or other devices, input errors can easily occur. To reduce such input errors, … Read more
The S7 protocol is the standard protocol used for communication between SIEMENS S7 series products. Its advantage is that both communication parties can establish a communication connection through the S7 protocol, regardless of whether they are on the same MPI bus, the same PROFIBUS bus, or the same Industrial Ethernet. The data exchange is independent … Read more
Click Jicheng Training WeChat Follow me! ☀ Jicheng Training Network’s official WeChat is the most professional and concentrated in the industrial control field, providing technical sharing, free videos, and a communication platform. Follow Jicheng, and there will be no problem in improving your skills! 1. Overview All the content that needs to be discussed regarding … Read more
Now, let’s explain the application of MODBUS. Currently, most industrial control communication between the upper computer and the lower computer uses the communication protocol MODBUS. It is easy to imagine the importance of communication between machines. 1. MODBUS System Framework Diagram 2. Application of MODBUS The underlying communication of MODBUS uses RS485 signals connected via … Read more
EtherCAT is a commonly used industrial field bus that features a flexible network topology, simple system configuration, and intuitive operation similar to field bus systems. Additionally, due to the low implementation cost of EtherCAT, it has become a viable option in situations where field bus networks were previously not applicable. Next, we will use Huichuan … Read more
Hello everyone, I am Liu Lu. Today we will discuss the multi-machine coordinated control of S7-1500 PLCs. This technology allows multiple PLCs to work together, just like a group of friends working together to complete a big project. Whether you want to enhance your factory’s automation level or want to explore advanced techniques, this technology … Read more